I think if you remove the primary key from create table statement then you will be able to load the data sucessfully:

As the primary key is a single field or combination of fields that uniquely defines a record. None of the fields that are part of the primary key can contain a null value. A table can have only one primary key.

So as you have the multiple repeted records in your data for which you are getting the error.

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composite Primary is better rather then removing the key as this can be used as refence further to make any relationship to other entitys.
In my last post I have show how you can create the composite Primary Key in your table.
You can run the attached code and check if you are able to see primary key created and also check for alll the records.

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